Demountable window.



L. J. WESTNESS.

DEMOUNTABLE WINDOW.

APPLICMION HLED SEPT-27,1915.

1 ,261 9@%@ Patented Apr. 9, 1918.

2 SHEETS-SHEET I.

L. J. WESTNESS.

DEMOUNTABLE WINDOW.

APPLICATION FILED SEPT-27.1915.

Lfiifio Patented Apr. 9, 1918.

2 SHEETS-SHEET 2- .1 I" II Mai MJAALMLN'M LOUIS J. WESTNESS, 0F MILWAUKEE, WISCONSIN.

DEIVIOUNTABLE WINDOW.

Specification of Letters Patent.

Patented Apr. 9., 1918.

Application filed. September 27, 1915. Serial No. 52,825.

To all whom it may concern:

Be it known that 1, Louis J. l/VEsTNEss, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Demountable Windows, of which the following is a description, reference being had to the accommanying drawings, which are a part of this specification.

This invention has for its object to provide a window which may be readily demounted so as to render both the upper and the lower sash easily accessible for cleaning within the room, neither sash interfering with the accessibility of the other nor being endangered in the operation of demounting, cleaning, and remounting.

Another object of the invention is to perfect details of construction for enabling the sash to be swung out of the casin and for holding the sash weight in its raised position to permit of such movement.

With the above and other objects in View the invention consists in the demountable window as herein claimed and all equivalents.

Referring to the accompanying drawings, in which like characters of reference indicate the same parts in the different views:

Figure 1 is a vertical sectional View of a demountable wind-ow constructed in accordance with this invention;

Fig. 2 is a similar View showing the lower sash swung into the room and the upper sash lowered into pivotal engagement with the hinge mechanism ready to be also swung into the room;

Fig. 3 is a sectional plan view of the parts in the position of Fig. 2, the hinge mechanism being shown in dotted lines;

Fig. 4% is a similar view with both sashes swung into the room for cleaning;

Fig. 5 is a view showing the construction of the middle guide strip for facilitating the removal of a portion thereof to permit the upper sash to be removed;

Fig. 6 is a sectional view showing the manner of connecting the removable section of the sash stop to permit of the withdrawal of the window sash;

Fig. 7 is a detail view showing one of the swinging pivotal sockets for the lower sash;

Fig. 8 is a detail View showing one of the hooks on the sash for engaging such sockets;

Fig. 9 is a detail view of the pivot plate in the bottom of the upper sash;

, gig. 10 is a view of the sash cord holder; an

Fig. 11 is a sectional view of the same in use.

In these drawings 15 indicates the window frame, of ordinary construction, provided with the blind stop 16 and the middle guide strip 17 and the sash stop 18 to form guideways for the lower sash 19 and the upper sash 20 respectively, both of which are suspended by sash cords 21 passing over pulleys 22 and connected with sash cord weights not shown.

On one side of the window frame a section of the sash stop 18 is made removable by making the upper end thereof beveled to fit in a corresponding undercut end of the stationary portion, and by providing it at intervals with locking members 23 which comprise handled hooks passing through the sash stop section and engaging staples 2% contained in recesses bored in the casing where they will be covered by the sash stop, as shown in Fig. 3. The upper end of the removable section of the sash stop 18 is guided to its proper position on being replaced by having a slot in its end fitting over a triangular-shaped guide 25 driven into the window frame.

At the other side of the casing the sash stop 18 is provided with a pair of swinging pivotal sockets 26, one of which is shown in detail in Fig. 7, said sockets having an elongated eye portion projecting at right angles from a fiat stem portion which is pivotally mounted on the sash vstop, and is adapted to swing from the position shown in dotted lines to the position shown in full lines, where it rests on a stop 27 to prevent its downward movement. The lower sash 19 at this side is provided with a pair of downwardly bending hook members 28 which are adapted to engage in the socket members 26 when the lower sash is lowered to the position shown in Fig. 1, after the socket members have been swung to their horizontal positions against the stops 2?. The lower sash thus becomes pivotally mounted so as to becapable of turning on the socket members 26 in order that it may swing into the room when the section of the sash stop 18 is removed, as shown in Fig. 8. The hook members 28 are made sufficiently long to "20 able for the purpose.

have their ends pass entirely through the socket members 26, and such ends are flattened so that while permitting theirpassage through the elongated eye portions of the 5 sockets 26 when the window sash is in its proper position, these flattened ends prevent their withdrawal from the sockets in any other position of the sash. When the lower sash 19 is lowered into engagement with its pivotal sockets 26 it is necessary, or at least de'sirable, ttoclamp the sash cord 21 at the free edge of'thesash sothat said-sash cord -:ma'-ybe disconnected from the sash and the sash may then swing freely on its pivotal "1'5 connections Without having such sash cord interfere therewith. Any suitable means maybe employed forthus clampingthe sash cord, but lhave shown in Figs. 10 and 11 a s-ashcord holder which is particularly suit- This consists of a rod 29having a shoulderedhook or troughlikeprojection 30 at one side of the end thereof and a double crank pin 31 passing through the rod and connected by avconnccting rod 32 with an angular lever 33 at the other end=ofthe rod, there being-aneye 'on the connecting rod connected by a coil spring-3 1 with the rod so that the crank of thepin 31 is normally held by the spring toward a-position of engagement with the shoulder of the book 30. This device is used by first pressing the lever 33 against the rod 29-by the fingers of the hand which holds the rod, thus swinging the crank pin 3'5 away'frjom the shoulder of thehook 30, and

thenengagingthe hook with the sash cord and pushing it upwardly until the cord passes through the beveled notch portion of the hook,'and then releasing the hold on the 0 lever 33' and permitting the spring 3% to move the crank pin into engagement with .the sash ;'cord, as shown-in Fig. 11. This clamping means effectively holds the 'sa'sh'cordagainst "thepull ofthe counterweight and when the sashcord is again connectedwiththe sash the clamp may be easily removed by first depressing the lever .33 and then pulling the hook downwardly. 'VVhen engaged with "the'sash cord the lockingmeans maybe left I unattended, as'it will remainin place.

A'sheet metal connecting member 35 of a 'U-shape in cross section is adapted to fit aroundthe edge of the lower S21Sl1'19, &11d lS provided with undercut notches in 'its'side edges forming hooks to engage the hook members'28 on one face of the sash and headed projections 36 onthe other face of :the sash. These hook-like projections on the connecting member 35 are downwardly directed so'that whensai'd connecting member'is 'engaged'with'the hooks28 and the headed projections 36rit is able to bear the 'weight ofthe upper sash-when suitably'con- 'ne'cted therewith. The connecting member '65 35 has a hinge rod 37 connected to its back the upper sash. 1s mounted-onits pivotal supports'and has the connectingmemher attached thereto by means 0f hinges 38, and this hinge rod has a pivotal socket 39 at its upper end,

similar to the pivotal sockets 26 though rigid therewith and adapted to receive a hook member 40 on the upper sash 20 which isvsimilar to the hook members 28 of the lower sash. At its lower end the h nge-rod 37 has an outwardly extending arm bearlng an upwardly projecting spur forming a pivotal point 41 to receive the opening in a pivot plate 42 secured to the bottom of Thus when the lower sash the hirge rod 37 may be swung into-position so that the lowering of the upper sash will cause the hook -10 to engage with-the'soc'ket 39,-and'the pivot plate 42 to engage with the pivotsupport 41, and the upper sash is then pivotally mounted so as to swing out of the casing when a section of the middle guide strip 17 is removed forthat purpose.

To permit of the ready removal of a por- 'tion of the middle guide strip '17, a section thercof is-provided with a beveled lower end to fit behind the correspondingly shaped end of the stationary portion therebeneath, while its upper end is engaged by acountersunk turn button 43 at the lower end of the stationary portion thereabove. By turning the button as out of the way the removable sectionof the middle guide strip 17 may be w thdrawn from its usual groove, thus permitting the upper sash 20 to swing open, as shown in Fig. 4, on the double hinge connection formed by the hinge members connecting the upper sash with the hinge rod 37 andth'e hinge connections between the hinge rod and the connecting member 35. Thispermits of the'upper'and lower sash folding compactly together, and permits of free access to both sides of both .window lights for thorough and convenient removing them, as just described, andwhen 'the'sash cords are again connectedand they are'returned to their places in the casing-with the connecting member 35 removedandthe sections of the guide'strips 17 and 18 replaced, the window is restored to its normal condition and is operative in the usual man? ner, the simple fixtures incidental to the present invention being'inconspicuous and not'in the least objectionable.

By means of the present invention the tedious and dangerous operation of washing windows is rendered safe and easy of accomplishment, both sashes being capable of swinging into the room at a height that is convenient. The operation of attaching and detaching the mechanism involved is readily accomplished without loss of time, so that the work may be more quickly performed and more thoroughly performed than by means of the old methods.

WVhat I claim as new and desire to secure by Letters Patent is:

1. A demountable window, comprising a casing, an upper sash and a lower sash slidably mounted therein, a suitable hinge connection on the casing for the lower sash, a connecting means adapted to be removably connected with the edge of the lower sash, and a hinge connection on the upper sash adapted to be engaged with the connecting means for permitting the upper sash to swing out of the casing upon its hinge support from the lower sash.

2. A demountable window, comprising a casing, an upper sash and a lower sash slidably mounted therein, a suitable hinge connection for the lower sash permitting it to swing out of the casing, a connecting member adapted to be connected to the edge of the lower sash, and suitable hinge means between the connecting member and the upper sash for permitting the upper sash to also swing out of the casing.

3. A demountable window, comprising a casing, an upper sash and a lower sash slidably mounted therein, a suitable hinge con nection for the lower sash permitting it to swing out of the casing, a connecting member adapted to be attached to the edge of the lower sash, a hinge rod pivotally mounted on the connecting member, and a separable hinge connection between the hinge rod and the upper sash for permitting the upper sash to also swing out of the casin 4. A demountable window, comprising a casing, an upper sash and a lower sash slidably mounted therein, a suitable hinge connection for the lower sash permitting it to swing out of the casing, a connecting member U-shaped in cross section adapted to be secured to the edge of the lower sash, a hinge rod pivotally mounted on the connecting member, a pivotal socket carried by the hinge rod and a downwardly projecting hook member on the upper sash adapted to engage the pivotal socket to form a hinge connection permitting the upper sash to also swing out of the casing.

In testimony whereof, I aflix my signature, in presence of two witnesses.

LOUIS J. WESTNESS.

Witnesses:

R. S. C. CALDWELL, KATHERINE HOLT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

